public static void DrawBvh(this IDebugCanvas canvas, BvhILS2 bvh)
{
void Helper(BvhILS2 node, int d)
{
if (d != 0)
{
var s = new StrokeStyle(d % 2 == 0 ? Color.Red : Color.Lime, 10.0f / d, new[] { d % 2 == 0 ? 1.0f : 3.0f, d % 2 == 0 ? 3.0f : 1.0f });
canvas.DrawRectangle(node.Bounds, 0.0f, s);
}
if (node.First != null)
{
Helper(node.First, d + 1);
Helper(node.Second, d + 1);
}
else
{
for (var i = node.SegmentsStartIndexInclusive; i < node.SegmentsEndIndexExclusive; i++)
{
canvas.DrawLine(node.Segments[i].First, node.Segments[i].Second, StrokeStyle3);
}
}
}
Helper(bvh, 0);
}
public static BvhILS2 FindContourAndChildHoleBarriersBvh(this PolyNode node)
{
if (node.visibilityGraphNodeData.ContourAndChildHoleBarriersBvh != null)
{
return(node.visibilityGraphNodeData.ContourAndChildHoleBarriersBvh);
}
return(node.visibilityGraphNodeData.ContourAndChildHoleBarriersBvh = BvhILS2.Build(node.FindContourAndChildHoleBarriers()));
}
private PolyTree PostProcessPunchedLand(PolyTree punchedLand)
{
void TagSectorSnapshotAndGeometryContext(PolyNode node)
{
node.visibilityGraphNodeData.LocalGeometryView = this;
node.Childs.ForEach(TagSectorSnapshotAndGeometryContext);
}
void TagBoundingVolumeHierarchies(PolyNode node)
{
var contourEdges = node.Contour.Zip(node.Contour.RotateLeft(), IntLineSegment2.Create).ToArray();
var bvh = BvhILS2.Build(contourEdges);
node.visibilityGraphNodeData.ContourBvh = bvh;
node.Childs.ForEach(TagBoundingVolumeHierarchies);
}
punchedLand.Prune(HoleDilationRadius);
TagSectorSnapshotAndGeometryContext(punchedLand);
TagBoundingVolumeHierarchies(punchedLand);
return(punchedLand);
}